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Well the system is actually a 10ton unit it has two 5 tons and both of the coils go to one airhandler. the top unit is completely plugged even the fan had a nice layer of dirt. the hole is the "custom made" filter rack for the system. its on the return line just before it goes to the coil.

I thought you were saying a whole in the line set, like a leak. Now I see, said the blind man.

yeah 65 degrees. its a locked and monitored computer room. if you shut the AC units the temp rises to 80 within 30 minutes. That why they have the heat gun. they were tearing the panels off using the heat gun and warm water to defrost the unit in 10-15 minutes

i grabbed my flash light and i cant see through the indoor coil. ice is gone. i moved the location of the freeze stat so its actually insidethe fins and not loosely flapping on the coil. i guess it would take alot for the stat to measure freezing temps if its just measuring return air temp.hahaha

Wow. the coil is completely closed. i even tried putting a metal kabob stick trough the coil but couldnt make it past the first layer of dirt.

I was curious about this, (I'm new to the field so please excercise some patience) I hadn't heard anyone mention it, or don't recall any talk of a coil so dirty, it would have to be replaced. Having been under these conditions for so long, is the coil still salvageable? What kind of time frame is your co. allowing you to fight with this?

I was curious about this, (I'm new to the field so please excercise some patience) I hadn't heard anyone mention it, or don't recall any talk of a coil so dirty, it would have to be replaced. Having been under these conditions for so long, is the coil still salvageable? What kind of time frame is your co. allowing you to fight with this?

Im a service Tech but the place im working on hired me as a maintenance guy. they figured it was cheaper to hire and keep a service tech on staff than call someone every week. They want me to save the coil. so I will do my best, they have alot of these spray coil cleaner bottles and all the time in the world. ill post my results later on